function [v_slts] = Function_DMRS_v_slots(Hopping, n_ID, NCellID, SeqGroup)
    % v_slots Generate the sequence of sequence indices (v) when Sequence hopping is enabled
    % Outputs:     v_slts                   - seq. of base seq. numbers
    % Spec:        3GPP TS 36.211 section 5.5.1.4 v13.0.0
    
    D_ss = SeqGroup;
    if(n_ID>0)
        D_ss = 0;  % is virtual cell ID, override given D_ss
    else
        n_ID = NCellID;
    end

	if strcmp(Hopping, 'Sequence')
%         c_init = floor(n_ID/30) * 2^5 + mod(n_ID + D_ss,30);       % Updata later
%                 
%         v_slts = phy_goldseq_gen(20, c_init);                      % Updata later
%         v_slts = v_slts(n_s+1:n_s+2);                              % Updata later
    else
      	v_slts = zeros(1,2);
	end
end